article: Hunan TV's new program,   Dad,Where Are We Going? has become very popular since last year. The show tells us that fathers should take part in their children's growing-up. In fact, this topic was always mentioned by Zeng Guofan (1811-1872). a famous official during the late Daoguang Period of the Qing Dynasty (1644-1912).
  Although Zeng spent most of his time away from his family, his letters back home to his children and younger brothers have become famous. In these letters, there are many helpful suggestions on proper behavior . Many of his ways on child education are popular among today's Chinese parents, including reading classical books and so on. His child-raising methods are useful for today's busy fathers. Like Zeng, they also spend most of their time away from home.
  According to Zeng,  the purpose of education was to learn wisdom from books, rather than getting an official position. Children should know that the most important purpose of studies is to get more knowledge about nature and life.
  "But now ,parents just want their children to be rich and powerful. " Mr. Tang, a writer in China, said.
  Some teachers say that parents need to build a good relationship with their children. Parents shouldn't force  their children to realize their wishes.
  In Zeng's letters, he asked his young children to do housework as part of their daily life, even though his children had many helpers. He believed that doing housework would make his children more confident and independent .
question: When was Zeng Guofan born?
options: In 1811. In 1644. In 1872. In 1912.